1004440012 has 12 divisors (see below), whose sum is σ = 1762291440. Its totient is φ = 500928176.

The previous prime is 1004440007. The next prime is 1004440033. The reversal of 1004440012 is 2100444001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321208 + ... + 324319.

It is an arithmetic number, because the mean of its divisors is an integer number (146857620).

Almost surely, 2^1004440012 is an apocalyptic number.

It is an amenable number.

1004440012 is a deficient number, since it is larger than the sum of its proper divisors (757851428).

1004440012 is a wasteful number, since it uses less digits than its factorization.

1004440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645920 (or 645918 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1004440012 is about 31692.9016027249. The cubic root of 1004440012 is about 1001.4778189752.

Adding to 1004440012 its reverse (2100444001), we get a palindrome (3104884013).

It can be divided in two parts, 100444001 and 2, that multiplied together give a palindrome (200888002).

The spelling of 1004440012 in words is "one billion, four million, four hundred forty thousand, twelve".